Valve for fluid-pressure apparatus.



No. 648,695. Patented May I, I900. J. mama.

VALVE FOR FLUID PRESSURE APPARATUS.

(Application filed Nov. 22, 1899.)

(No Model.) 3 SheetsSheet I.

zL- 'lhcsse I In]; 7120f 0. LW M 2 Hfl/WZWMZM No. 648,695. Patented May I, I900.

J.KRONE.

VALVE FUR FLUID PRESS APPARATUS.

(Applicationflled Nov. 2, 899.)

(No Model.) 3 Sheets-Sheet 2.

Fig.3.

[hi/anion Z asses;

No. 648,695. Patented May I, I900.

J. KRONE. VALVE FOR FLUID PRESSURE APPARATUS.

(Application filed Nov. 22, 1899.) (No Model.) 3 Sheets-Sheet 3.

-Fig.6.

Fig.7.

Invader:

witnesses:

IMAM

JOIIANNES KRONE, OF ESSEN, GERMANY, nss cnon TO FRIED. KRUPP, or

SAME PLACE.

VALVE FOR FLUID-PRESSURE APPARATUS.

SPECIFICATION forming part of Letters Patent No. 648,695, dated May 1, 1900. Application filed November 22, 1899. Serial r5. 737,848. (No model.)

To all whom it may concern:

Be it known that I, J OHANNES KRONE, en-' gineer, a citizen of the German Empire, residin g at Essen, Germany, have invented certain new and useful Improvements in Valves for Fluid-Pressure Apparatus, of which the following is a specification.

In hydraulic or fluid pressure apparatus the moving of the valves for regulating the ad mission and discharge of'fluid generally requires considerable force when fluid under high pressure is used. This is a serious in -f convenience, particularly in hydraulic apparatus, where it is desirable to be able to actuate the valve by hand.

My invention has reference to an oscillat- I In the drawings, Figure l representsalongitudinal vertical section of the four-way 0s;

cillating slide-valve in the position of rest.

Fig. 2 is a horizontal section on the line IIII of Fig. 1; Fig. 3, avertical section on the line III III of Figs. 1 and 2; Fig. 4:, a plan view of the oscillating valve in the position of rest,

the upper part of the casing and the auxiliary valve being removed Fig. 5, a plan view of the main valve and of the auxiliaryoscillating slide-valve, the latter in section, both in the position of rest; Fig. 6, a vertical section through both slide-valves on the line VI VI,

Fig. 5; Fig. 7, a similar section on the line VII VII, Fig. 5; Fig. 8, a plan view showing the main valve in the position of rest and the auxiliary valve in horizontal section turned to the left from the position of rest; Fig. 9, a horizontal section of the main valve in a position turned to the left-from the position Fig. 8; Fig. 10, a plan view'of the auxiliary valve. r. f

Similar letters and figures designate corremotors embodying sponding parts throughout the several views of the drawings. V I

In the drawings the valve-casing is shown constructed of three parts-namely, a lower part a, a middle part b, and a top 0, the three parts being connected by screw-bolts. The lower part act the casing is provided with four channels or ports cl 2 f g, all of them terminating at the seat 1 1 of the main valve. The openings of the four ports at the valveseat arecongruent segments of the sector of a circle arranged symmetrically, the openings d and e,'as Well as. f and 9, being diametrically opposite, while the center line of the ports d and e is at rightangles to the center line of the ports f and g. The channels d and e extend from the valve-seat vertically down, while the channels f and g are turned at right angles and lead away in opposite directions,

as shown in Fig. 1. The fluid under pressure enters through the channel at, and the waste or exhaust fluid passes off through the channel 6, while by the channels f and g communication is established between the main valve and'the hydraulic apparatus, said channels, according to the position of the main valve, alternately serving forthe supply and discharge of the liquid to and from the hydraulic apparatus. 1.

' h is the main valve, arranged to turn on the centerof the valve-'face. Said valve is made cylindrical'and provided with two segmental chambers 0 and p, open at the face of the valve a, and its upper end is extended into an aim ular recess 2 of the upperpart c of the casing. The chamber 0 is continuously over thesupply port or channel (1, the channel p continuously over the discharge-port 6, while in the position of rest the channels f and g are covered by the main valve and through the chambers 0 and p are alternately connected with the supply-port (Z and the dis= charge-port e in the working positions. tween the middle part b of the casing and the valve h is an annular space divided into four segmental spaces m m and n 'n by two diametrically-opposite abu tments it, projecting from the casing b and provided with suitable packing to prevent leakage, and by two working pistons 70 is, projecting from valve h and likewise provided with suitable packing. These partsnamely, the annular space, to-

\ gether with the' pistons on the valve and the abutments on the casingform a double oscillating piston-motor, which-is actuated by water under pressure and turns the valve. The supply of water to the piston-motor and the discharge from the same are regulated by an auxiliary valve to.

q and r are channels passing through the main valve 71, the channel q connecting the diametrically-opposite chambers m, while the chambers n are connected by the channel 7'. To the upper face of the valve h, Fig. 6, lead avertical bore 5 from the channel qand a vertical boret from the channel 1'. Two vertical bores 26 and o are also provided in the main valve, of which the firstone, it, passes up from the chamber 1) and the otherf u, up from the chamber 0, Figs. 3 and 7' The bores s, t, and to all terminate within the seat 3 of the auxiliary valve, which seat projects somewhat above the top surface of the main valve h, and are arranged concentrically on the valve-seat s and 15, being opposite each other, while thebore u isat right angles to them. The bore 4) is situated outside of the seat of the auxiliary valve 20, which latter is situated within a chamber 4 of the upper part c of the casin g, and which chamber 4 is tightened' by a packing 5 and kept filled with liquid through the port d,chamber 0, and channel a), Fig. 3. The valve 20 turns on the center of the seat 3, to which the valve is ground.

. the pressure-chamber 4 of the upper part c of the casing by a bore/v. The second chamber y is constantly. above the bore u, so as to be in constant communication with the exhaust-space through the chamber p and port I c. The bores s and 'i are in the half-way position of the pistons Z; is both covered, Figs. 5 and 6, while in the working position these bores s and t, and with them the chambers m and n, are alternately connected through the chambers a: and y, the one with the pressurechamber 4 and the other with the exhanstchamber 19. The auxiliary valve to is turned by a rod engaging a slot on the top and passing through a stuffing-box in the top of the casing.

The operation of the apparatus is as follows: When the main valve and the auxiliary valve are in their middle or rest positions, as shown in Figs. 1 to 7, the ports or channels f and g are covered by the main valve h, Figs.

1 and 2, and the channels 8 and i are covered by the auxiliary valve w, Figs. 5 and 6, so thatthe liquid under pressure in the channel d, chamber 0, and bore 1, the chamber 4, the

bore .2, and the chamber a: can pass neither to the hydraulic apparatus nor into the pressure-chambers m and n. When, however, the auxiliary valve is turned, for instance, to the left, as in Fig. 8, the bores s and tare uncovered, the liquid under pressure passes through (Z 0 'v and farther in the direction of the light-winged arrows in Fig. 8, and through the chamber 4, channels .2 t 1' into the two chambers n, while the two chambers m are conncctedto the exhaust-space through q s y u p e. The pressure of the liquid within the chambers or, acting upon the pistons hf causes the same to move away from the abutments, thereby turning the main valve, while at the same time the liquid within the spaces m escapesin the direction of the dark-winged arrows in Fig. 8. The main valve is turned in the same direction as the auxiliary valve was turned-that is, to the left-until it takes i the position shown in Fig. 9, so that now the auxiliary valve reassumes its fOI'HlBRPO'SltIOH relatively to the main valve, as shown in Fig.5.

Consequently the openings of sand 25 are again covered by the auxiliary valve, the flow of liquid under pressure to the spaces '12. is in terrupted, and the main valve it stands still.

In this position of the main valve the connec 1 tions between the channels cl and g through the chamber 0 and of the channels f and e through the channels 1) are established and the pressure liquid and the waste pass through the valve in the direction of the arrows in Figs. 1, 3, and 9, where the light-winged ar rows indicate the direction of the liquid under pressure and the dark-winged arrows the direction of the waste. When new the auxiliary valve is turned back into its original "position and a-little beyond it, then from the commencement of the turning the chamberoc passes over the bore .9 and the chamber y over the bores t and u, so that the liquid under pressure now passes into the spaces on and turns the main valve back to its original position, and a little beyond it, until it reaches the position previously occupied by the auxiliary valve. Now the channels 61 and f are connected by the chamber 0, the channels e and g by the chamber 12, and the flow of the liquid in the channels f and g is reversed from that indicated by the arrow in Fig. 1 that is, the hydraulic apparatus is reversed. Thus the motion of the main valve follows that of the auxiliary valve as to direction and angular throw.

In place of two pistons on the main valve" main valve, leaving a space within which the 648,696 v j a piston oscillates, an abutment or abutments projecting from the casing to the'main valve, these parts forming an oscillating fluid-pressure motor for turning the'valve; in combination with an auxiliary hand valve constructed to turn upon the main valve for regulating the admission to and discharge from the oscillatingpistommotor, and suitable connecting-ports; by which means the main valve is caused to follow the motion of the auxiliary valve and the flow of the liquid is regulated, substantially as specified.

2. A valve-gear for liquid-pressure apparas tus embodying a valve-casing with a valve seat and ports; a cylindrical slide-valve con-:

structed to oscillate upon said valve-seat; a piston or pistons projecting from said valve to the cylindrical casing, an abutment or abutments projecting from the cylindrical casing to the valve, the piston or pistons, the abutment or abutments and the annular chamber between the casing and the valve forming the essential parts of a motor acuating the main valve; an auxiliary oscillating slide-valve seated upon the top of the main valve for regulating the flow of the liquid under'pressure to and from said motor, suitable parts bolted together, namely-a lower part a t with a circular valve-seat 1, 1, four concentric ports, one for supplying liquid under pressure, two for alternately serving for the supply and discharge of the liquid to and from the hydrulic apparatus and one for the final discharge of the waste liquid; a middle substantially-cylindrical part b, and a cover 0 forming a chamber for an auxiliary valve; a cylindrical valve h resting upon the valve- .seat of the part a and pivoted to the inner periphery of the cover 0, said cylindrical valve It being of smaller. diameter than the,

inner cylindrical surface of the part b of the casingand provided with segmental recesses o and p; a hydraulic oscillating motor for the main valve consisting essentially of a piston or pistons projecting from the-valve to the cylindrical inner wall of the casing and an abutment or abutments projecting from the casing, the piston and abutment. confined be-" tween the upperand lower part of the casing; an auxiliary oscillating slide-valve w located within the upper part cof the casing, resting upon a, valve-seat upon the top of the main valve and pivoted to the main valve, a rod passing through a stuffing-box of the casing, by which rod the auxiliaryvalve w is turned,

and connecting-channels from the auxiliary valve to the main valve and. thence to the motor, whereby the main valve is caused to follow the motion oi theauxiliaryvalve, and the flow of liquid regulated, substantially as specified. f

In testimony whereof 'I have hereunto set my hand in the presence of two subscribing witnesses. 7 T I JOHANN ES KRONE. 'Witnessesi v WM. Essauwnnv,

- EMIL Hon'rrn. 

